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trace-cmd is a front end user space tool to interact with ftrace, the official tracing infrastructure of the Linux Kernel. Ftrace allows one to see inside their kernel to examine what exactly is happening under the covers. With the focus on virtual machines, the interaction between host and guest needs more work on the tracing front. A new option is being developed in the trace-cmd tool suite to allow for admins to view the events that happen between host and guest. This will allow one to see events as they occur in the host and how those events affect the guest. The work is still in progress, which allows the audience of this talk to have their say in how the final product will end up.

Steven Rostedt currently works for Red Hat on their Real Time team. He's the maintainer of the stable releases for the Real Time patch (PREEMPT_RT). He is also one of the original developers for the Real Time patch. Steven is the main developer and maintainer for ftrace, the official tracer of the Linux kernel, as well as the user space tools trace-cmd and kernelshark. He also develops ktest.pl (in the kernel) and make localmodconfig.